Clearing device for draw-rolls.



PATENTED JUNE 7,1904.

- P. HARDMAN.

CLEARING DEVICE FOR DRAW ROLLS.

APPLIOATIOH FILED 001" 16. 1903.

2 SHEETS-B31131 1.

N0- MODEL.

PATENTED JUNE 7, 1904.

P. HARDMAN. CLEARING DEVICE FOR DRAW ROLLS.

APPLICATION IILED OUT. 16. 1903.

2 SHEETS-SHEET 2.

"IY l no MODEL.

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Patented June 7, 1904.

PATENT OFFICE.

PETER HARDMAN, OF WVILLIMANTIC, CONNECTICUT.

CLEARING DEVICE FOR DRAW-RQLLS.

SPECIFICATION forming part of Letters Patent No. 761,67 3, dated. June '7, 1904.

Application filed October 16, 1903.

To 077/ whom, it noq concern:

Be it known that 1, PETER HARDMAN, a citizen of the United States, residing at VVillinna'ntic,.in the county of Windham, State of Connecticut, have invented certain new and useful Improvements in Clearing Devices for Draw-Rolls, of which the following is a full, clear, and exact description.

Myinvention relates to improvements in clearing devices for draw-rolls for spinning and roving machines.

The object of myinvention is to provide simple, effective, and easily-detachable clearing mechanismfor removing loose fiy or waste which accumulates on the draw-rolls such as employed in spinning and roving frames.

1n the drawings 1 have not attempted to illustrate the mechanism common to spin ningframes, but have confined the illustrations to such parts as those to which my invention relates, since it is obvious that from a reading of the following specification the character of the spinning or roving frame is immaterial.

1n the drawings, Figure 1 is a side elevation illustrating conventionally the arrangement of the draw-rolls of a spinning or roving machine, the same being fitted with my clearing device. Fig. 2 is a plan view of the clearing device. Fig. 3 is a sectional view of one end of a roll, showing its bearing in section. Fig. 4: is a side elevation, partly in section, of the yielding support for the clearing device.

1 2 3 represent draw-rolls of the usual type, which may have ribbed or roughened surfaces such as common to said rolls.

1 5 6 are rolls located above the draw-rolls 1 2 3, respectively, so that the roving which is represented as passing between them will be subjected to the proper drawing action of the rolls during its transit.

In practicethe rolls 1 2 3 accumulate loose fly or waste, and since the presence of the same on said rolls impairs the effectiveness of the drawing operation it is my purpose to provide a simple and effective mechanism for removing or clearing the same. This I accomplish effectively in the following manner:

7 is a clearing-roll revolubly mounted on a suitable bearing. 9 is another clearing-roll also revolubly mounted on a suitable bearing.

Serial No. 177,251. (No model.)

the draw-rolls 1 and 2, as indicated in Fig. 1,

the roll 9 will bear. against the roll 8, as indi- 'cated.

10 is asaddle which revolubly supports the drawing-rolls 7 and 9-for example, by the intermediate shaft connection 17 19. This saddle is preferably located midway in the length of the rolls. The same may be suitably divided to permit of the introduction of the same.

A suitable yielding support is provided to press the clearing-rolls 7 9 against the drawrolls the desired extent. Said yielding support may comprise a tubular member 12 and a plunger 13, mounted therein, and a spring 14:, located within the tubular member intended to force the plunger outwardly. Suitable nibs or projections 15 16 are provided by which the ends of the yielding device 'may anchor the lower end in the frame 18 and the upper end in the saddle 10 at a point between the axial centers of the clearing-rolls 7 and 9. The saddle is preferably provided with a single notch or recess to receive one of the roll-shaftsfor example, 19. The other shaft 17 may rest upon the flat surface of the saddie, and hence if it should happen that either of said shafts or rollers should be tilted there will be no binding action occasioned, such as there might be if twov recesses were provided, one for each shaft. The outer surface of the clearing-rolls 7 9 are covered with a suitable fabric, to which the loose fly or waste will cling when coming in contact therewith. It should be stated that the rolls 1, 2, and 3 are ordinarily of metal. Hence the waste does not cling thereto tenaciously, but will be removed on coming in contact with the clearing-rolls.

face speed than that of roll 1. For this reason it is obvious the clearing-roll 9 can bear against only one of the draw-rollsfor example, 3; but I have found that although there is a slight difference in the surface speeds of the rolls 1 and 2 I may without injury to the clearing-roll 7 cause the same to bear against the rolls 1 and 2 simultaneously. In fact, I have ascertained that the slight difference in surface speed between the rolls 1 2 and the friction thereof on the surface of the roll 7 facilitates the more successful removal of any fly or waste that may accumulate on the rolls 1 or 2.

In the drawing Fig. 2 I have illustrated the position that the saddle 10 may assume, and in Fig. 3 I have illustrated a simple and effective method of connecting or linking the ends of the rolls together. A shaft may not extend entirely through either roll, but may, as indicated in Fig. 2, merely connect the adjacent intermediate ends of the same to give them the proper stiffness.

Referring again to Fig. 3, the end of either clearing-roll may be bored and a bushing 20 may be driven into the same. 21 is a headed pin, the head being inside, while the end of the pin projects outside of said bushing. The link 11 may be secured to the outer end of the pin 21 in any suitable way--for example, by means of a set-screw 22.

Having thus at length described those details which are importantto a full understanding of my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a clearing device for draw rolls for spinning and roving machines, a clearingroller arranged to bear against two draw-rolls simultaneously, another clearingroller arranged to bear against another draw-roll, a supporting means for said clearing-rolls arranged to press the same toward said drawrolls, said supporting means engaging said rolls at a point substantially midway of their ends.

2. In a clearing device for draw-rolls for spinning and roving machines, a clearingroller arranged to bear against two draw-rolls simultaneously, another clearing-roller arranged to bear against another draw-roll, a support for said clearing-rolls comprising a saddle bridging the space between said clearing-rollers and a yielding member pressing against said saddle to hold it to its work.

3. In a clearing device for draw-rolls for spinning and roving machines, a clearingroller arranged to bear against the under side of two drawrolls simultaneously, another clearing-roller arranged to bear against the under side of another draw-roll, a support for said clearing-rolls arranged to yielding] y press the same toward said draw-rolls, a saddle located between said clearing-rollers and one end of said support, said saddle having a hearing formed therein for one of said clearingrollers, the other roller being supported on a substantially flat portion of said saddle.

4:. In a clearing device for drawrolls for spinning and roving machines, a clearingroller arranged to bear against the under side of two draw rolls simultaneously, another clearing-roller arranged to bear against the under side of another d rawroll, a support for said clearing-rolls arranged to press the same toward said draw-rolls, a saddle located between said elearing-rollers and one end of said support, said saddle engaging said rollers at a point intermediate the length of each.

5. In a clearing device for draw-rolls for spinning and roving machines, a clearingroller arranged to bear against two d raw-rolls simultaneously, another clearing-roller arranged to bear against another draw-roll, a support for said clearing-rolls arral'iged to press the same toward said d raw-rolls, a saddle located between said clearing-rollers and one end of said support, said support engaging said saddle at a point between the axial centers of said rollers.

6. In a clearing device for draw rolls for spinning and roving machines, a pair Ol Cl(21,ling-rollers, a saddle supporting the same, a yielding support, said support engaging said saddle at a point between the axial centers of said rollers.

7. In a clearing device for draw rolls for spinning and roving machines, apair of elearing-rollers, a saddle supporting the same, a yielding support, said support engaging said saddle at a point between the axial centers of said rollers, and links connecting the ends of said rollers.

Signed at IV illimantic,Con nectieu t, this 14th day of October, 1903.

PETER l I A l\ l )MA N.

Witnesses:

E. S. Boss, E. AnuLLn Mourxron. 

